Residual Current Circuit Breaker---JVL66-63

Detecting element and tripping element of product are set between the incoming terminal and outgoing terminal          Operating characteristic of product cannot be changed by external mechanical device            Operating mechanism has free tripping function              The operating parts can not be taken off from the outside of shell, the product shell should not affect normal work of operating mechanism, the parts group instead of contact pressure should guarantee that the contact pressure of product will not change during running.             Earthing fault, leakage and isolation protection functions              High rated ultimate short-circuit breaking capacity